EP1540813A4 - Flexible method and apparatus for performing digital modulation and demodulation - Google Patents

Flexible method and apparatus for performing digital modulation and demodulation

Info

Publication number
EP1540813A4
EP1540813A4 EP03763209A EP03763209A EP1540813A4 EP 1540813 A4 EP1540813 A4 EP 1540813A4 EP 03763209 A EP03763209 A EP 03763209A EP 03763209 A EP03763209 A EP 03763209A EP 1540813 A4 EP1540813 A4 EP 1540813A4
Authority
EP
European Patent Office
Prior art keywords
demodulation
digital modulation
performing digital
flexible method
flexible
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03763209A
Other languages
German (de)
French (fr)
Other versions
EP1540813B1 (en
EP1540813A2 (en
Inventor
Robert Wright Boesel
Theodore Jon Myers
Tien Q Nguyen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Apple Inc
Original Assignee
Freescale Semiconductor Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Freescale Semiconductor Inc filed Critical Freescale Semiconductor Inc
Publication of EP1540813A2 publication Critical patent/EP1540813A2/en
Publication of EP1540813A4 publication Critical patent/EP1540813A4/en
Application granted granted Critical
Publication of EP1540813B1 publication Critical patent/EP1540813B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70707—Efficiency-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70707—Efficiency-related aspects
    • H04B2201/7071—Efficiency-related aspects with dynamic control of receiver resources
EP03763209.8A 2002-07-03 2003-07-03 Flexible method and apparatus for performing digital modulation and demodulation Expired - Lifetime EP1540813B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US39363302P 2002-07-03 2002-07-03
US393633P 2002-07-03
PCT/US2003/021055 WO2004006426A2 (en) 2002-07-03 2003-07-03 Flexible method and apparatus for performing digital modulation and demodulation

Publications (3)

Publication Number Publication Date
EP1540813A2 EP1540813A2 (en) 2005-06-15
EP1540813A4 true EP1540813A4 (en) 2011-05-25
EP1540813B1 EP1540813B1 (en) 2018-10-10

Family

ID=30115615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03763209.8A Expired - Lifetime EP1540813B1 (en) 2002-07-03 2003-07-03 Flexible method and apparatus for performing digital modulation and demodulation

Country Status (6)

Country Link
US (5) US7702035B2 (en)
EP (1) EP1540813B1 (en)
JP (1) JP4399623B2 (en)
CN (1) CN100349151C (en)
AU (1) AU2003256386A1 (en)
WO (1) WO2004006426A2 (en)

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Also Published As

Publication number Publication date
EP1540813B1 (en) 2018-10-10
WO2004006426A3 (en) 2004-04-01
JP2005532741A (en) 2005-10-27
JP4399623B2 (en) 2010-01-20
US7912999B2 (en) 2011-03-22
US7596134B2 (en) 2009-09-29
WO2004006426A2 (en) 2004-01-15
US20040071104A1 (en) 2004-04-15
US20040071199A1 (en) 2004-04-15
AU2003256386A8 (en) 2004-01-23
CN100349151C (en) 2007-11-14
US20040047405A1 (en) 2004-03-11
AU2003256386A1 (en) 2004-01-23
EP1540813A2 (en) 2005-06-15
US20040004995A1 (en) 2004-01-08
US20040004997A1 (en) 2004-01-08
US7702035B2 (en) 2010-04-20
US7406102B2 (en) 2008-07-29
WO2004006426A9 (en) 2004-06-24
CN1678973A (en) 2005-10-05

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